A vacuum filling device for sealant

Abstract

A kind of sealing glue vacuum filling device, including base, lifting plate is connected on base, lifting driving device is arranged below lifting plate, the upper side of lifting plate is provided with packaging barrel, the upper side of packaging barrel is provided with cylinder, the outer wall on both sides of cylinder is respectively fixed with hot pressure sealing air cylinder, two hot pressure sealing air cylinders are oppositely arranged, the piston rod of hot pressure sealing air cylinder is connected with heat sealing device after extending into cylinder, PE bag fixing device is respectively arranged on the sidewall of both sides of cylinder above hot pressure sealing air cylinder, the upper side of cylinder is provided with transparent upper cover, inlet, vacuum valve and vacuum measuring table are arranged on transparent upper cover.The utility model discloses through lifting driving device drive lifting plate, drive packaging barrel with cylinder, transparent upper cover forms sealed cavity, after vacuumizing, it is filled with sealant to PE bag through inlet, then it is sealed to PE bag by heat sealing device with hot pressure sealing air cylinder drive, to realize vacuum filling quickly.

Description

Technical Field

[0001] This utility model relates to the field of machinery, and more particularly to vacuum filling technology, specifically a vacuum filling device for sealant. Background Technology

[0002] Sealants are highly viscous fluids used to fill gaps in structures, providing a sealing effect and offering functions such as leak prevention, waterproofing, vibration damping, sound insulation, and heat insulation. During sealant processing, the finished sealant needs to be filled into individual containers before being transported to the customer's workshop for use. Due to the high viscosity of the sealant, air is easily trapped during filling. Additionally, during manual sealing after filling, some air from the top of the sealant is also sealed into the inner packaging bag. This trapped air and the air in the upper part of the inner bag mix with the sealant during transportation. Because of the sealant's high viscosity, air bubbles mixed in the sealant can cause defects such as insufficient or incomplete application during the coating process, severely affecting the sealant's core function. Existing filling equipment struggles to achieve vacuum filling during the process. Utility Model Content

[0003] The purpose of this invention is to provide a sealant vacuum filling device to solve the technical problem that vacuum filling is difficult to achieve in the prior art.

[0004] This utility model provides a sealant vacuum filling device, including a base, a vertical slide rail fixedly mounted on the base, a lifting plate connected to the slide rail via a slider, a lifting drive device below the lifting plate, the power output end of the lifting drive device connected to the lifting plate, a packaging barrel mounted on the upper side of the lifting plate, a cylindrical body mounted on the upper side of the packaging barrel, two hot-press sealing cylinders fixedly mounted on the outer walls of the cylindrical body respectively, the two hot-press sealing cylinders facing each other, and each hot-press sealing cylinder's piston rod connected to a heat sealing device after extending into the cylindrical body, PE bag fixing devices mounted on the side walls of the cylindrical body above the hot-press sealing cylinders respectively, and a transparent top cover mounted on the upper side of the cylindrical body, with a feed port, a vacuum valve and a vacuum measuring gauge mounted on the transparent top cover.

[0005] Preferably, the lifting drive device includes a lever mechanism, one end of which contacts the bottom of the lifting plate, and the other end of which is provided with a pedal.

[0006] Preferably, the lifting drive device includes a lifting cylinder, which is fixedly connected to the base, and the piston rod of the lifting cylinder is fixedly connected to the lifting plate.

[0007] Preferably, a first sealing ring is provided between the cylinder and the packaging barrel, a second sealing ring is provided between the transparent top cover and the cylinder, and a third sealing ring is provided between the piston rod of the hot-press sealing cylinder and the cylinder.

[0008] Preferably, the lifting plate is provided with a first limiting groove, the lower end of the cylinder is provided in the first limiting groove, the lower end of the cylinder is provided with a second limiting groove, the upper end of the packaging barrel is provided in the second limiting groove, the lower end of the transparent cover is provided with a third limiting groove, and the upper end of the cylinder is provided in the third limiting groove.

[0009] Preferably, the heat sealing device includes a bracket, an electric heating tape is provided on the side of the bracket, and a contact switch is provided on the upper side of the bracket. The contact switches of the two heat sealing devices are arranged facing each other. The contact switch includes a housing, in which two fixed conductive plates and one movable conductive plate are provided. The movable conductive plate can contact the two fixed conductive plates. The two fixed conductive plates are connected in series with a power source through a wire, the movable conductive plate, and the electric heating tape. The movable conductive plate is connected to one end of a T-shaped insulating rod. The T-shaped insulating rod and the housing form a transverse sliding pair. A limit plate is fixedly provided in the housing. The other end of the T-shaped insulating rod passes through the limit plate and the housing and is fixedly connected to a top block. A spring is sleeved on the T-shaped insulating rod. The spring is located between the limit plate and the top block. The spring biases the movable conductive plate away from the fixed conductive plates.

[0010] Preferably, the heating tape is covered with a flexible polytetrafluoroethylene anti-stick fabric.

[0011] Preferably, the PE bag fixing device includes double-sided adhesive tape, which is adhered to the inner wall of the cylinder.

[0012] Preferably, the PE bag fixing device includes an electric clamp, which is installed on the inner wall of the cylinder.

[0013] Compared with the prior art, the effects of this invention are positive and obvious. This invention uses a lifting drive device to drive a lifting plate, which in turn moves the packaging barrel, cylinder, and transparent top cover to form a sealed cavity. After vacuuming, sealant is filled into the PE bag through the inlet. Then, a heat-sealing cylinder drives a heat-sealing device to heat-seal the PE bag, thereby quickly achieving vacuum filling. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a sealant vacuum filling device according to the present invention.

[0015] Figure 2 This is a front view schematic diagram of the heat sealing device in a sealant vacuum filling device according to the present invention.

[0016] Figure 3This is a top view schematic diagram of the heat sealing device in a sealant vacuum filling device according to the present invention.

[0017] Figure 4 This is a front view schematic diagram of the contact switch in a sealant vacuum filling device according to the present invention. Detailed Implementation

[0018] The present invention will be further described below with reference to embodiments, but the present invention is not limited to these embodiments. Any similar variations using the present invention should be included within the protection scope of the present invention. The directional terms such as up, down, front, back, left, right, center, inside, and outside in the present invention are defined based on the directions shown in the accompanying drawings. The use of directional terms is only for the convenience of clear description and is not a limitation on the technical solution.

[0019] like Figures 1-4 As shown, the present invention provides a sealant vacuum filling device, including a base 1, a vertical slide rail fixedly mounted on the base 1, a lifting plate 2 connected to the slide rail via a slider, a lifting drive device below the lifting plate 2, the power output end of the lifting drive device being connected to the lifting plate 2, a packaging barrel 3 mounted on the upper side of the lifting plate 2, a cylinder 4 mounted on the upper side of the packaging barrel 3, two hot-press sealing cylinders 5 fixedly mounted on the outer walls of the two sides of the cylinder 4, the two hot-press sealing cylinders 5 facing each other, the piston rod of the hot-press sealing cylinder 5 extending into the cylinder 4 and connected to a heat sealing device 6, PE bag fixing devices 7 mounted on the side walls of the cylinder 4 above the hot-press sealing cylinders 5, a transparent top cover 8 mounted on the upper side of the cylinder 4, and a feed inlet 9, a vacuum valve 10 and a vacuum measuring gauge 11 mounted on the transparent top cover 8.

[0020] Preferably, the lifting drive device includes a lever mechanism 12, one end of which contacts the bottom of the lifting plate 2, and the other end of which is provided with a pedal 13.

[0021] Preferably, the lifting drive device includes a lifting cylinder (not shown in the figure), which is fixedly connected to the base 1, and the piston rod of the lifting cylinder is fixedly connected to the lifting plate 2.

[0022] Preferably, a first sealing ring 14 is provided between the cylinder 4 and the packaging barrel 3, a second sealing ring 15 is provided between the transparent top cover 8 and the cylinder 4, and a third sealing ring 16 is provided between the piston rod of the hot-press sealing cylinder 5 and the cylinder 4.

[0023] Preferably, the lifting plate 2 is provided with a first limiting groove, the lower end of the cylinder 4 is provided in the first limiting groove, the lower end of the cylinder 4 is provided with a second limiting groove, the upper end of the packaging barrel 3 is provided in the second limiting groove, the lower end of the transparent cover 8 is provided with a third limiting groove, and the upper end of the cylinder 4 is provided in the third limiting groove.

[0024] Preferably, the heat sealing device 6 includes a bracket 18, with an electric heating tape 19 on the side of the bracket 18 and a contact switch 20 on the upper side of the bracket 18. The contact switches 20 of the two heat sealing devices 6 are arranged facing each other. The contact switch 20 includes a housing 21, in which two fixed conductive plates 22 and one movable conductive plate 23 are arranged. The movable conductive plate 23 can contact the two fixed conductive plates 22. The two fixed conductive plates 22 are connected in series with a power source through a wire 28, the movable conductive plate 23, and the electric heating tape 19. The movable conductive plate 23 is connected to one end of a T-shaped insulating rod 24. The T-shaped insulating rod 24 and the housing 21 form a transverse sliding pair. A limit plate 26 is fixedly arranged in the housing 21. The other end of the T-shaped insulating rod 24 passes through the limit plate 26 and the housing 21 and is fixedly connected to a top block 27. A spring 25 is sleeved on the T-shaped insulating rod 24. The spring 25 is arranged between the limit plate 26 and the top block 27. The spring 25 biases the movable conductive plate 23 away from the fixed conductive plate 22.

[0025] Preferably, the heating tape 19 is covered with a flexible polytetrafluoroethylene anti-stick fabric 29.

[0026] Preferably, the PE bag fixing device 7 includes double-sided adhesive tape, which is adhered to the inner wall of the cylinder 5.

[0027] Preferably, the PE bag fixing device 7 includes an electric clamp, which is installed on the inner wall of the cylinder 5.

[0028] All parts of this utility model not described in detail adopt well-known solutions in the prior art, which are already understood and implemented by those skilled in the art, and will not be described in detail here.

[0029] The working principle of this utility model:

[0030] The transparent top cover 8 is fixedly suspended on the lower side of the sealant reactor body, and the inlet 9 of the transparent top cover 8 is connected to the outlet valve of the sealant reactor body through a pipe.

[0031] The filling process is as follows:

[0032] Place the PE bag 17 into the packaging barrel 3. Then, stack the packaging barrel 3, the first sealing ring 14, the cylinder 4, and the second sealing ring 15 on the lifting plate 2. The upper edges of both sides of the PE bag 17 are fixed by the PE bag fixing device 7 to ensure that the PE bag 17 does not shift during filling. Step on the pedal 13, and the lifting plate 2 is raised through the lever mechanism 12, so that the cylinder 4 and the transparent top cover 8 are pressed together and sealed by the second sealing ring 15. The packaging barrel 3 and the cylinder 4 are pressed together and sealed by the first sealing ring 14, so that the packaging barrel 3, the cylinder 4, and the transparent top cover 8 form a sealed cavity. Then, open the vacuum valve 10 to evacuate the sealed cavity until the vacuum gauge displays -0.098 MPa, indicating that the ultimate vacuum level has been reached. Then close the vacuum valve 10 and open the discharge valve of the sealant container. The sealant is poured into the PE bag 17 through the inlet 9. Observe the PE bag 17 through the transparent top cover 8. When the predetermined amount is reached, close the discharge valve and wait for no sealant dripping. At the same time, start the hot-press sealing cylinder 5. The two hot-press sealing cylinders 5 drive the heat sealing device 6 to move in opposite directions to clamp and press the PE bag 17. After a certain period of time, the top blocks 27 of the two contact switches 20 simultaneously close, each driving the moving conductive sheet 23 to contact the fixed conductive sheet 22, thus connecting the heating tape 19 to the power supply. The heating tape 19 can reach a temperature of 200℃ in a short time, heating and melting the PE bag 17 to form a sealed structure. After heat sealing is completed, the heat-sealing cylinder 5 retracts, the spring 25 returns to its original position, the heating tape 19 is de-energized, the pedal 13 is released, the packaging drum 3 descends, and the cylinder 4 is removed from the already packaged packaging drum 3 before filling the next packaging drum 3. The packaged packaging drum 3 is transported together with the PE bag 17.

[0033] The power supply connected to the heating tape 19 can be located inside the housing 21. Alternatively, it can be located on the outside of the cylinder 4, with a wire hole provided in the side wall of the cylinder 4. The wire hole has a sealing structure and a relatively long wire is provided to facilitate the extension and retraction of the heating tape 19 along with the hot-press sealing cylinder 5. Under the isolation of the PTFE anti-stick cloth 29, the actual heating temperature of the PE bag 17 is approximately 160℃, which is above the melting point of PE.

[0034] In one embodiment, the PE bag fixing device 7 uses double-sided adhesive. A suitable low-viscosity double-sided adhesive is selected. After the upper edges of both sides of the PE bag 17 are adhered with the double-sided adhesive, when the sealant is injected into the PE bag 17 through the inlet 9, the adhesive joint experiences a downward shear force. Due to the large force-bearing area, the PE bag 17 will not detach from the double-sided adhesive and will not sag. During heat sealing, the adhesive joint experiences a peel force. The peel force has a small force-bearing area, allowing the PE bag 17 to detach from the double-sided adhesive.

[0035] In one embodiment, the PE bag securing device 7 uses an electric clamp. The electric clamp is released before heat sealing. The electric clamp can be controlled wirelessly or via a wired switch. A wire hole for the power supply wire of the electric clamp can be provided in the side wall of the cylinder 4, and a sealing structure is provided in the wire hole.

[0036] In one embodiment, the transparent top cover 8 is made of acrylic sheet with a thickness of 20mm. The cylinder body 4 has a wall thickness of 2mm and is made of 304 stainless steel. The sealing ring is an annular silicone gasket with a thickness of 3mm. The PE bag 17 is approximately 0.1mm thick and can be heat-sealed.

[0037] This utility model uses a lifting drive device to drive the lifting plate 2, which in turn drives the packaging barrel 3, the cylinder 4, and the transparent top cover 8 to form a sealed cavity. After vacuuming, the sealant is filled into the PE bag 17 through the feed port 9, and then the heat sealing cylinder 5 drives the heat sealing device 6 to heat seal the PE bag 17, thereby quickly realizing vacuum filling.

Claims

1. A sealant vacuum filling device, characterized in that, The device includes a base with a vertical slide rail fixed on it. A lifting plate is connected to the slide rail via a slider. A lifting drive device is located below the lifting plate, and the power output end of the lifting drive device is connected to the lifting plate. A packaging barrel is located on the upper side of the lifting plate, and a cylindrical body is located on the upper side of the packaging barrel. Two heat-sealing cylinders are fixed on the outer walls of the two sides of the cylindrical body, and the two heat-sealing cylinders are arranged facing each other. After the piston rod of any heat-sealing cylinder extends into the cylindrical body, it is connected to a heat-sealing device. PE bag fixing devices are located on the side walls of the cylindrical body above the heat-sealing cylinders. A transparent top cover is located on the upper side of the cylindrical body, and a feed port, a vacuum valve, and a vacuum gauge are located on the transparent top cover.

2. The sealant vacuum filling device according to claim 1, characterized in that, The lifting drive device includes a lever mechanism, one end of which contacts the bottom of the lifting plate, and the other end of which is equipped with a pedal.

3. The sealant vacuum filling device according to claim 1, characterized in that, The lifting drive device includes a lifting cylinder, which is fixedly connected to the base, and the piston rod of the lifting cylinder is fixedly connected to the lifting plate.

4. The sealant vacuum filling device according to claim 1, characterized in that, A first sealing ring is provided between the cylinder and the packaging barrel, a second sealing ring is provided between the transparent top cover and the cylinder, and a third sealing ring is provided between the piston rod of the hot-press sealing cylinder and the cylinder.

5. The sealant vacuum filling device according to claim 1, characterized in that, The lifting plate is provided with a first limiting groove, the lower end of the cylinder is provided in the first limiting groove, the lower end of the cylinder is provided with a second limiting groove, the upper end of the packaging barrel is provided in the second limiting groove, the lower end of the transparent cover is provided with a third limiting groove, and the upper end of the cylinder is provided in the third limiting groove.

6. The sealant vacuum filling device according to claim 1, characterized in that, The heat sealing device includes a bracket, an electric heating tape is provided on the side of the bracket, and a contact switch is provided on the upper side of the bracket. The contact switches of the two heat sealing devices are arranged facing each other. The contact switch includes a housing, in which two fixed conductive plates and one movable conductive plate are provided. The movable conductive plate can contact the two fixed conductive plates. The two fixed conductive plates are connected in series with a power source through a wire, the movable conductive plate, and the electric heating tape. The movable conductive plate is connected to one end of a T-shaped insulating rod. The T-shaped insulating rod and the housing form a transverse sliding pair. A limit plate is fixedly provided in the housing. The other end of the T-shaped insulating rod passes through the limit plate and the housing and is fixedly connected to a top block. A spring is sleeved on the T-shaped insulating rod. The spring is located between the limit plate and the top block. The spring biases the movable conductive plate away from the fixed conductive plates.

7. A sealant vacuum filling device according to claim 6, characterized in that, The electric heating tape is covered with a flexible polytetrafluoroethylene anti-stick fabric.

8. The sealant vacuum filling device according to claim 1, characterized in that, The PE bag fixing device includes double-sided adhesive, which is attached to the inner wall of the cylinder.

9. A sealant vacuum filling device according to claim 1, characterized in that, The PE bag fixing device includes an electric clamp, which is installed on the inner wall of the cylinder.

Images